Settling-tank.



e. w. OITERSON.

SETTLING TANK.

A PPLICAT|.ON -F|LED MAY 11. ms.

Patented J an. 4, 1916.

WITNESSES:

nvvslvroa v George/K012220012 ATTORNEY GEORGE w. o rrnnson, or SEATTLE, WASHINGTON.

SETTLING-TANK.

To all 'w/mnzit may concern:

Be itknown that I, Gnonos W, OTTERSON,

citizen of theUnited States, residing at Seattle, in the county of King and State of \Vashington, have invented-a certain new and useful Improvement in Settling-Tanks. of which the followingis a specification.

My-invention relates to settling tanks used 'in-connectlon with apparatus fol-removing sediment or; sand from catclnbasins or sewers. and the ob ect of my inventlonls to-proide' a vehicle that isprovided with a tank full'of. water and'with a force-pump, to

gether with a hydraulic elevator and suitable connectmg'hose which may be moved from one catch-basin to another and its several devices-he operatedto clean and remove the sediment from successive ones'of catch-basins.

such

In the accompanying drawingsl have represented an embodiment of the invention,

"and referring to such drawing, 2 indicates a verticalmid-section of the inclosingwalls of'a catch-basin of a sewer, and 3, 3 indicates sections of a sewer-pipe disposed "to lead into and out from said catch ba'sin at corresponding points through opposite side walls thereof. Ex'tending from the interior of said catch-basin through its top wallto the surface 4: of a street is a man-hole 5' which is adapted to be covered by an iron,

late (not shown) [of well known 'form. pon the rear end portion of a vehicle '6, and

over its rear axle 7-and wheels 8, is mounted a'tank'9 of rectangularform except that its rear end wall 10 extends obliquely upward and rearwa'rdly from its bottom wall to facilitate the operation of dumping its con, tents. The rear end portion of the top cl" said tank 9 is covered by a hinged'cover 1'1, only a fragment of which is shown, which i hinged cover 11 is hingedto a fixed cover 12 said lpartition-lfi-to the other side thereofof which, also, only a fragmentis shown,

said cover 12 tightly covering the larger portion of the top ofsaid tank 9; thus in the operation'of dumping the contents of the tank 9 the cover 11 may be forced to swing Specification of Letters Patent. Application filed uay 17, 1915. Serial No. 28,788.

.Paten only through the space, between the' rear end of said pal-titiim l-l and the obliquely disposed end-wall 10. Disposedto extend through thefront wall 13, near the top edge. thereof. into' the space on one side of the par-5" J titionl rQisai-i inlet pipe iii-while an outlet pipe 16 extends through said front end wall lilat a corresponding position on the other side of said partition 1-1, as shown, and near the pipelii. on the same side of thepartition 1+. is auover tl ow outlet pipe li'.

the end of the tank S) and back of a drivers seat 18 is secured an engine 19 with which is- -operati\"el;v associated a force pumpQOF-F (,(mnected with the suction inlet nipple21 of and connects with the outlet. pipe 16 of the tank 9. while the. delivery outlet nipple 23 of said pump 20 is eonnectedim'ith a hose 24 which extends downwardly-"to,the bottom of thecatch-basin where it'is connected with the intake end ot'a hydraulic elevator 25 to whose outlet end is connected a hose 26 the man-hole 5 to connect with theinlet pipe .ldof'the tank 9.

With the hose 22, and'with thcltank 9 full (ifwfltel, thenifthe 19" water -will be sucked from the tank throughpipe 16 on one side of the partition 14;. and such water passing through the pump 20 will be forced throughthe downwardly extended hose 24; through ,tllib h -'draulic' "elevator. 25, thence upwardly said pumpf'2l) is a hose 22 which extendsto 2% and 26 thus connected force pump 20. be operated by. the engine through the hose 26 to and thrg'iilg'h the gihlht'yripe15'into the other side of said partition 14 and such water ascending through the pipe 26' will, in a well known manner, carry with it sediment dra-Wn into the elevator 25,by which sediment said elevator 25 issurrounded as it lies on the bottom Wall of the catch-basin; and such water with its required sediment passing through said. pipe 15 into the space on one side of the partition 14 will vthen flow rearwardlyin such space and around the end of the par- 1 tition 1 1, into anditorwa-rdly through the space on the other side of said partition 14 to be again sucked out of the tank 9 through the outlet pipe 16Zby' the pump 20.

. again to make a circuit through the hose 24, elevator-251and hose 26, such flow continue ing during the operation of the pump 20.

As the water charged with sediment flows a whichextendsupwardly through and out ot' I slowly from the inlet pipe rearwardly to pass around the rear end of the partition '14: to the other side thereof much of such sediment will fall to the bottom of the tank 1 9 there to remain until dumped and in the passageofsuch water from the rear end of the tank 9 toythe outlet pipe 16 nearly all of the remainder ofsuch sediment will find its way to the bottom of the tank 9 there likewise to remain until dumped so that although water entering the tank 9 through the pipe16 may be highly charged with sediment and that same water as it is sucked out of the tank 9 on the other side of the 'partition 14 through the pipe 16 will be nearly clear water having parted with its sediment in its passage rearwardly and forwardiy around the rear end of the partition 14. Thus, beginning with a tank full of clear water for use in operating the hydraulic elevator such Water may be actuated by the pump 20 continuously to cireu late through the hydraulic elevator 25 and the tank 9 to carry sediment. from the bottom of the catch-basin into the tank 9 there to settle to the bottom of the tank 9 in the manner described.

In the drawing 1 have shown two bafiieplates 27 and 28 that are spaced from each other and disposed to extend across the out 1 flowing side of the partition 14.

I have shown a piece ofhose 29 connected with the over fiow pipe 17 to extend into the man-hole 5, of the catch-basin, such over;

flow outlet serving to permit the escape of any excess of water from the tank 9, which excess of water may be due to the picking up by the elevator 25 of additional sewer water contained in the catch-basin. Obviously, after the tank 9 has received its load of sediment which has accumulated by operating-on a number of different catchbasins there the pieces of hose 24, 26 and 29 may be raised and. disposed on the vehicle 6 and then such vehicle 6 may move to a desired point to dump its contents in an obvious manner.

-Having described and illustrated one form of apparatus for removing sediment from the catch-basin of a sewer, in accordance with my process, what I claim is:

In apparatus of the class described, a portable settling tank consistin of a body of rectangular form having a s anting rear GEORGE \V. OTTERSON.

Witnesses: O. Jormson, GEO. BLAIR. 

